PT-2021-1767 · Oracle+6 · Mysql Server+5

Published 2020-08-20 · Updated 2022-01-04 · CVE-2021-2012

Positive Technologies (AI Summary)

CVSS v2.0

6.8

Medium

Base vector

AV:N/AC:L/Au:S/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions: MySQL Server versions 8.0.20 and prior

Description: The issue is related to insufficient access control in the MySQL Server product, specifically in the Server: Security: Privileges component. It allows a high-privileged attacker with network access via multiple protocols to compromise the MySQL Server. Successful attacks can result in the unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of the MySQL Server.

Recommendations: For MySQL Server versions 8.0.20 and prior, update to a version later than 8.0.20 to resolve the issue. As a temporary workaround, consider restricting network access to the MySQL Server to minimize the risk of exploitation. Additionally, restrict privileges to the minimum required for each user to reduce the potential impact of the issue.

Fix

Weakness Enumeration

CWE-264

Related Identifiers

ALSA-2020:3732

ALT-PU-2020-2640

ALT-PU-2021-2380

ALT-PU-2021-3668

BDU:2021-00469

CESA-2020_3732

CVE-2021-2012

OESA-2021-1088

RHSA-2020:3518

RHSA-2020:3732

RHSA-2020:3755

RHSA-2020:3757

RHSA-2020_3732

RLSA-2020:3732

Affected Products

Alt Linux

Almalinux

Centos

Mysql Server

Red Hat

Rocky Linux

References · 249

• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CS5THZSGI7O2CZO44NWYE57AG2T7NK3K · Vendor Advisory
• https://oracle.com/security-alerts/cpujan2021.html · Vendor Advisory
• https://security.gentoo.org/glsa/202105-27 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-00469 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2019-2991 · Security Note
• https://osv.dev/vulnerability/CVE-2021-2012 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-1998 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2019-3011 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2019-2963 · Security Note
• https://osv.dev/vulnerability/OESA-2021-1088 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-2016 · Security Note
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T7EAHJPWOOF4D6PEFLXW5IQWRRSZ3HRC · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-2019 · Security Note
• https://errata.almalinux.org/8/ALSA-2020-3732.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-3009 · Security Note